CN111677335A

CN111677335A - Basement building construction is with preventing support arrangement that collapses

Info

Publication number: CN111677335A
Application number: CN202010554196.4A
Authority: CN
Inventors: 葛黄辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2020-09-18

Abstract

The invention discloses an anti-collapse supporting device for basement building construction, which belongs to the technical field of underground construction auxiliary equipment and comprises a plurality of first bases, wherein every two adjacent first bases are hinged through a first pin shaft, and the surfaces of the first bases positioned on the outermost sides are hinged with the inner side surfaces of the second bases through second pin shafts. According to the invention, through the designed mutual matching among the first elastic panel, the second elastic panel, the connecting support base, the elastic device, the first bases, the second bases, the threaded rods, the threaded cylinders and the movable rods, the radian of a plane formed by the plurality of first bases and the two second bases can be adjusted according to the radian of the base plane at the top of the basement, and the radian can be automatically adjusted according to different stress points of the supporting surface, so that the effective support of the supporting surface at the top of the basement can be effectively improved, a better supporting effect can be realized, and the loss caused by careless mistakes during the construction process can be prevented.

Description

Basement building construction is with preventing support arrangement that collapses

Technical Field

The invention belongs to the technical field of underground construction auxiliary equipment, and particularly relates to an anti-collapse supporting device for basement building construction.

Background

A basement is a room whose floor is more than one-half of the net height of the room below the outdoor ground level. The multi-storey and high-rise buildings need deeper foundations, and in order to utilize the height, a basement is built under the bottom floor of the building, so that the use area is increased, soil backfilling of the center of the building is omitted, and the building is economical. The basement is built below the bottom layer of the house, so that the land efficiency of the building can be improved. Some high-rise building bases are buried deeply, basements are built by fully utilizing the depth, and the economic effect and the using effect are good. The basement is divided into a common basement and an air defense basement according to functions; according to the structural material, the concrete structure basement has a brick wall structure and a concrete structure basement, and according to the structural form, the concrete structure basement has a full basement and a half basement.

The building construction refers to production activities in the engineering construction implementation stage, is the construction process of various buildings, and also can be a process of changing various lines on a design drawing into a real object at a specified place. The method comprises foundation engineering construction, main structure construction, roofing engineering construction, decoration engineering construction and the like. The site of the construction work is called a "construction site" or "job site", also called a worksite.

In the process of building basement, in order to avoid accidents such as collapse, the support device for preventing collapse is generally used for protection. For example, the supporting device for arch tunnel construction (patent No. CN 110985085A) disclosed by Chinese patent network solves the technical problems that the existing supporting device is complex in structure, needs to be manually built on site, is poor in stability, and needs to be disassembled and built after tunnel construction advances for a certain distance, so that the engineering quantity is increased, the supporting device is inconvenient to use, and the construction efficiency of the tunnel is influenced, and the technical problems are solved by the designed sliding frame, the vertical supporting rod, the first arc-shaped top plate and the vertical arch-shaped supporting mechanism, but the supporting device still has some defects, is poor in flexibility, has poor flatness due to the fact that the top of an underground construction operation area is usually uneven, can generate local stress when being supported, can generate a local suspended state, easily generates local collapse accidents, and reduces the safety degree, and the support device cannot be applied to a plane or a cambered surface at the same time, so an anti-collapse support device for basement building construction is urgently needed to solve the problems.

Disclosure of Invention

The invention aims to: in order to solve the flexibility relatively poor, because underground construction operation district top is unevenness usually, the roughness is relatively poor, can appear local atress in the time of supporting, local unsettled state, the local accident of collapsing appears easily, and the safety degree reduces, and can't be applicable to the problem of plane or cambered surface simultaneously, and the basement building construction who provides prevents the side strutting arrangement that collapses.

In order to achieve the purpose, the invention adopts the following technical scheme:

an anti-collapse supporting device for basement building construction comprises a plurality of first bases, wherein every two adjacent first bases are hinged through a first pin shaft, the surfaces of the first bases located on the outermost sides are hinged to the inner side face of a second base through a second pin shaft, the tops of the first bases and the second base are fixedly connected with the same first elastic panel, the top of the first elastic panel is fixedly connected with an elastic device, one end, far away from the first elastic panel, of the elastic device is fixedly connected with a connecting and supporting seat, the bottom of the first base located at the middle is fixedly connected with a threaded rod, the surface of the threaded rod is in threaded connection with a threaded cylinder, the surface of the threaded cylinder is sleeved with a first bearing, the side face of the first bearing is fixedly connected with a first connecting frame, the inner side wall of the first connecting frame is hinged to one end of the surface of a movable rod through a third pin shaft, the other end of the surface of the movable rod is hinged with the inner side wall of a second connecting frame through a fourth pin shaft, the number of the second connecting frames is multiple, the tops of the second connecting frames are fixedly connected with the bottom of the first base and the bottom of the second base respectively, a second bearing is sleeved on the surface of the threaded cylinder and is clamped on the top of the bottom plate, a sliding sleeve is sleeved on the surface of the bottom plate, a supporting column is sleeved in the sliding sleeve, a first supporting plate is fixedly connected to the side face of the supporting column, and the top of the first supporting plate is fixedly connected with the bottom of the base through a hydraulic cylinder; the inner side wall of the second base is hinged with the surface of the first flange through a fifth pin shaft, the bottom of the first flange is fixedly connected with one end of the telescopic device, the other end of the telescopic device is fixedly connected with the second flange, the surface of the second flange is hinged with the inner side wall of the fixed seat through a sixth pin shaft, and the bottom of the fixed seat is fixedly connected with the top of the base; the connecting groove has been seted up to the side of joint support seat, be provided with second elastic panel in the connecting groove to the inside wall fixed connection of spring and connecting groove is passed through to the side of second elastic panel, and two adjacent second elastic panel's opposite face fixed connection, the spout has been seted up to the inboard bottom of connecting groove corresponding second elastic panel's position, sliding connection has the slider in the spout, the opposite face fixed connection of slider and second elastic panel.

As a further description of the above technical solution:

the surface of the second bearing is fixedly connected with rib plates, the number of the rib plates is a plurality, the rib plates are arranged in an annular array by taking the axis of the second bearing as the circle center, and the surface of the threaded cylinder is fixedly connected with a plurality of levers.

As a further description of the above technical solution:

the elastic device comprises a telescopic sleeve, one end of the telescopic sleeve is fixedly connected with the top of the first elastic panel, a telescopic rod is sleeved in the telescopic sleeve, one end of the telescopic rod is fixedly connected with the bottom of the connecting and supporting seat, the other end of the telescopic rod is fixedly connected with a first magnetic plate, the inner side wall of the telescopic sleeve corresponds to a second magnetic plate fixedly connected with the position of the first magnetic plate, and the magnetic poles of the opposite surfaces of the second magnetic plate and the first magnetic plate are the same.

As a further description of the above technical solution:

the bottom of support column is provided with the universal wheel to the support column side corresponds the position fixedly connected with second backup pad of universal wheel, threaded hole is seted up on the surface of second backup pad, threaded hole female connection has the screw anchor rod.

As a further description of the above technical solution:

the input of pneumatic cylinder passes through the wire and is connected with the output electricity of switch, the input of switch passes through the wire and is connected with the output electricity of power, switch and power all set up the top at the base.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. according to the invention, through the designed mutual matching among the first elastic panel, the second elastic panel, the connecting support base, the elastic device, the first bases, the second bases, the threaded rods, the threaded cylinders and the movable rods, the radian of a plane formed by the plurality of first bases and the two second bases can be adjusted according to the radian of the base plane at the top of the basement, and the radian can be automatically adjusted according to different stress points of the supporting surface, so that the effective support of the supporting surface at the top of the basement can be effectively improved, a better supporting effect can be realized, and the loss caused by careless mistakes during the construction process can be prevented.

2. In the invention, the lever is designed, the lever can effectively prolong the length of the output force arm of the thread cylinder by utilizing the lever principle, so that a constructor can be more portable in the process of twisting the thread cylinder to rotate on the surface of the threaded rod, the second bearing is used as a connecting medium between the thread cylinder and the base through the designed second bearing to play a role of supporting and fixing the thread cylinder and prevent the thread cylinder from lifting on the surface of the threaded rod due to the action of external force, the first bearing is used as a connecting medium between the thread cylinder and the first connecting frame through the designed first bearing, so that the first connecting frame is limited by the movable rod in the process of rotating the thread cylinder, the first connecting frame can be prevented from rotating, the magnetic poles of the opposite surfaces of the first magnetic plate and the second magnetic plate arranged between the telescopic sleeve and the telescopic rod are the same through the designed elastic device, the mutual exclusion for the connection supporting seat accessible telescopic link is flexible in flexible cover and is moved, and through the floor of design, the floor can effectively increase the connection area between second bearing face and the base, therefore can be used to strengthen the second bearing and play the stability of supporting role in-process to the screw thread section of thick bamboo.

3. In the invention, through the designed telescopic device, the fifth pin shaft and the sixth pin shaft, two end parts of the telescopic device can respectively rotate around the fifth pin shaft and the sixth pin shaft as the circle centers, can perform telescopic action according to the change of a plane formed between the first base and the second base, and can change the self supporting angle, so that the stability between the first base and the second base can be further improved, through the designed sliding sleeve, the hydraulic cylinder and the supporting column, the base can slide on the surface of the supporting seat through the sliding sleeve, the telescopic action of the hydraulic cylinder is controlled by operating the switch to drive the base to perform lifting sliding action on the surface of the supporting column, so that the height of the connecting supporting seat relative to the ground can be regulated, and controlled, through the designed threaded anchor rod, the threaded hole and the universal wheel, the supporting column can move on the ground through the universal wheel, and certain convenience can, the screw anchor rod is twisted to rotate in the threaded hole, so that the lifting action can be performed, and the end part of the screw anchor rod enters the ground surface and can be used for ensuring the stability of the support column.

Drawings

FIG. 1 is a schematic view of a front view of a cross-sectional structure of an anti-collapse supporting device for basement building construction according to the present invention;

FIG. 2 is a schematic top view of the anti-collapse supporting device for basement building construction;

FIG. 3 is a schematic cross-sectional view of an elastic device of an anti-collapse supporting device for basement construction in front view;

fig. 4 is a schematic structural view of a first base of the anti-collapse supporting device for basement building construction according to the present invention;

FIG. 5 is a schematic structural view of a second base of the anti-collapse supporting device for basement building construction according to the present invention;

fig. 6 is a schematic structural view of a first connecting frame of the anti-collapse supporting device for basement building construction provided by the invention.

Illustration of the drawings:

1. a first base; 2. a first pin shaft; 3. a second pin shaft; 4. a second base; 5. a first elastic panel; 6. an elastic device; 61. a telescopic sleeve; 62. a telescopic rod; 63. a first magnetic plate; 64. a second magnetic plate; 7. connecting a supporting seat; 8. a threaded rod; 9. a threaded barrel; 10. a second bearing; 11. a rib plate; 12. a first bearing; 13. a first connecting frame; 14. a third pin shaft; 15. a movable rod; 16. a second link frame; 17. a fourth pin shaft; 18. a lever; 19. a fifth pin shaft; 20. a first flange; 21. a telescoping device; 22. a second flange; 23. a sixth pin shaft; 24. a fixed seat; 25. a sliding sleeve; 26. a support pillar; 27. a first support plate; 28. a hydraulic cylinder; 29. a second support plate; 30. a threaded hole; 31. a threaded anchor rod; 32. a universal wheel; 33. a base; 34. a spring; 35. connecting grooves; 36. a second elastic panel; 37. a slider; 38. a chute; 39. a power source; 40. and (4) switching.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: an anti-collapse supporting device for basement building construction comprises a plurality of first bases 1, wherein two adjacent first bases 1 are hinged through first pin shafts 2, the surface of the first base 1 located on the outermost side is hinged with the inner side face of a second base 4 through second pin shafts 3, the tops of the first base 1 and the second base 4 are fixedly connected with a same first elastic panel 5, the top of the first elastic panel 5 is fixedly connected with an elastic device 6, through the designed elastic device 6, the magnetic poles of the opposite faces of a first magnetic plate 63 and a second magnetic plate 64 arranged between a telescopic sleeve 61 and a telescopic rod 62 are the same and mutually exclusive, so that the connecting and supporting seat 7 can perform telescopic action in the telescopic sleeve 61 through the telescopic rod 62, one end of the elastic device 6, far away from the first elastic panel 5, is fixedly connected with the connecting and supporting seat 7, and the bottom of the first base 1 located in the middle is fixedly connected with a threaded rod 8, the surface of the threaded rod 8 is in threaded connection with a threaded cylinder 9, the surface of the threaded cylinder 9 is sleeved with a first bearing 12, the side surface of the first bearing 12 is fixedly connected with a first connecting frame 13, the first connecting frame 13 is limited by a movable rod 15 in the process of rotating the threaded cylinder 9 by the designed first bearing 12 and the first bearing 12 is used as a connecting medium between the threaded cylinder 9 and the first connecting frame 13, so that the first connecting frame 13 can be prevented from rotating, the inner side wall of the first connecting frame 13 is hinged with one end of the surface of the movable rod 15 through a third pin shaft 14, the other end of the surface of the movable rod 15 is hinged with the inner side wall of a second connecting frame 16 through a fourth pin shaft 17, the number of the second connecting frames 16 is several, the tops of the second connecting frames 16 are respectively fixedly connected with the bottoms of the first base 1 and the second base 4, the surface of the threaded cylinder 9 is sleeved with a second bearing 10, through the designed second bearing 10, the second bearing 10 is used as a connecting medium between the threaded cylinder 9 and the base 33, the threaded cylinder 9 is supported and fixed, the threaded cylinder 9 is prevented from lifting on the surface of the threaded rod 8 due to the action of external force on the threaded cylinder 9, the second bearing 10 is clamped at the top of the bottom plate, the surface of the bottom plate is sleeved with a sliding sleeve 25, a supporting column 26 is sleeved in the sliding sleeve 25, the side surface of the supporting column 26 is fixedly connected with a first supporting plate 27, and the top of the first supporting plate 27 is fixedly connected with the bottom of the base 33 through a hydraulic cylinder 28;

the inner side wall of the second base 4 is hinged to the surface of the first flange 20 through a fifth pin shaft 19, the bottom of the first flange 20 is fixedly connected with one end of a telescopic device 21, the other end of the telescopic device 21 is fixedly connected with a second flange 22, the surface of the second flange 22 is hinged to the inner side wall of a fixed seat 24 through a sixth pin shaft 23, the bottom of the fixed seat 24 is fixedly connected with the top of a base 33, through the designed telescopic device 21, the fifth pin shaft 19 and the sixth pin shaft 23, two end parts of the telescopic device 21 can respectively rotate by taking the fifth pin shaft 19 and the sixth pin shaft 23 as the circle center, telescopic action is carried out according to the change of a plane formed between the first base 1 and the second base 4, the supporting angle of the telescopic device is changed, and the stability between the first base 1 and the second base 4 can be further improved;

connecting groove 35 has been seted up to the side of joint support seat 7, be provided with second elastic panel 36 in the connecting groove 35, and the inside wall fixed connection of spring and connecting groove 35 is passed through to the side of second elastic panel 36, and the opposite face fixed connection of two adjacent second elastic panel 36, spout 38 has been seted up to the position that the inboard bottom of connecting groove 35 corresponds second elastic panel 36, sliding connection has slider 37 in the spout 38, slider 37 and second elastic panel 36's opposite face fixed connection.

Specifically, as shown in fig. 1, the fixed surface of the second bearing 10 is connected with the ribbed plate 11, the number of the ribbed plate 11 is a plurality of, through the ribbed plate 11 of design, the ribbed plate 11 can effectively increase the connection area between the 10 faces of the second bearing and the base 33, therefore, the stability of the second bearing 10 in the supporting action process on the threaded cylinder 9 can be enhanced, and the plurality of ribbed plates 11 are in an annular array by taking the axis of the second bearing 10 as the center of circle, the fixed surface of the threaded cylinder 9 is connected with a plurality of levers 18, through the designed levers 18, by using the lever principle, the levers 18 can effectively prolong the length of the output force arm of the threaded cylinder 9, so that the constructor can be more portable in the process of twisting the threaded cylinder 9 in the surface rotation of the threaded rod 8.

Specifically, as shown in fig. 3, the elastic device 6 includes a telescopic sleeve 61, one end of the telescopic sleeve 61 is fixedly connected with the top of the first elastic panel 5, a telescopic rod 62 is sleeved in the telescopic sleeve 61, one end of the telescopic rod 62 is fixedly connected with the bottom of the connection support base 7, the other end of the telescopic rod 62 is fixedly connected with a first magnetic plate 63, a second magnetic plate 64 is fixedly connected with the inner side wall of the telescopic sleeve 61 corresponding to the first magnetic plate 63, and the magnetic poles of the second magnetic plate 64 are the same as the magnetic poles of the opposite surface of the first magnetic plate 63.

Specifically, as shown in fig. 1, the bottom end of the support column 26 is provided with a universal wheel 32, and the side of the support column 26 is fixedly connected with a second support plate 29 corresponding to the position of the universal wheel 32, a threaded hole 30 is formed in the surface of the second support plate 29, a threaded anchor rod 31 is connected with the threaded hole 30 in an internal thread manner, the support column 26 can move on the ground through the designed threaded anchor rod 31, the threaded hole 30 and the universal wheel 32, so that certain convenience can be brought to construction, the threaded anchor rod 31 can rotate in the threaded hole 30 in a twisting manner, lifting can be performed, and the end of the threaded anchor rod 31 can enter the ground below to ensure the stability of the.

Specifically, as shown in fig. 1, the input end of the hydraulic cylinder 28 is electrically connected to the output end of the switch 40 through a wire, the input end of the switch 40 is electrically connected to the output end of the power supply 39 through a wire, the switch 40 and the power supply 39 are both disposed at the top of the base 33, the base 33 can slide on the surface of the support seat through the sliding sleeve 25, the hydraulic cylinder 28 is controlled to perform a telescopic action by operating the switch 40, and the base 33 can be driven to perform a lifting sliding action on the surface of the support seat 26, so that the height of the connection support seat 7 relative to the ground can be adjusted and controlled.

The working principle is as follows: when the device is used, the lever 18 can effectively prolong the length of the output force arm of the thread cylinder 9 by utilizing the lever principle, so that a constructor can more conveniently support and fix the thread cylinder 9 in the process of twisting the thread cylinder 9 to rotate on the surface of the threaded rod 8, the second bearing 10 is designed to be used as a connecting medium between the thread cylinder 9 and the base 33, the effect of supporting and fixing the thread cylinder 9 is achieved, the thread cylinder 9 is prevented from lifting on the surface of the threaded rod 8 due to the action of external force on the thread cylinder 9, the first bearing 12 is used as a connecting medium between the thread cylinder 9 and the first connecting frame 13, the first connecting frame 13 is limited by the movable rod 15 in the process of rotating the thread cylinder 9, the first connecting frame 13 can be prevented from rotating, the thread cylinder 9 is kept unchanged in the process of rotating on the surface of the threaded rod 8 due to the action of external force, and the position relationship between the thread cylinder 9 and the base 33 is kept unchanged all the time, therefore, the threaded rod 8 can be lifted upwards or descended, because the adjacent two first bases 1 can rotate through the first pin shaft 2, the outermost first base 1 and the second base 4 can rotate through the second pin shaft 3, the first bases 1 correspondingly descend or ascend correspondingly relative to the second connecting frame 16 in the process of being driven by the threaded rod 8 to lift upwards or descend, and under the pulling of the movable rod 15, the radian of a plane formed by a plurality of first bases 1 and two second bases 4 can be adjusted according to the radian of the basal plane at the top of the basement, because the first elastic panels 5 are also arranged between a plurality of first bases 1 and two second bases 4, the stability and the flatness of the plane structure formed by a plurality of first bases 1 and two second bases 4 can be further improved, in the process, while the elastic device 6 has a supporting effect on the connecting and supporting base 7, the connecting and supporting base 7 can have a certain telescopic adjusting function according to the flatness of the supporting surface, under the action of the supporting surface, a certain fall may exist between two adjacent connecting and supporting bases 7, and the second elastic panel 36 slides in the connecting groove 35 under the action of tensile force, and can automatically adjust according to the stress point difference of the supporting surface, so that the effective support of the supporting surface at the top of the basement can be effectively improved, a better supporting effect can be realized, and the occurrence of careless mistakes during the construction process can be prevented, loss is caused, the base 33 can slide on the surface of the supporting base through the sliding sleeve 25, the operation switch 40 is opened to control the hydraulic cylinder 28 to perform the telescopic action, and the base 33 can be driven to perform the lifting sliding action on the surface of the supporting column 26, so that the height of the connecting and supporting base 7, the support column 26 can move on the ground through the universal wheel 32, certain convenience can be brought to construction, the threaded anchor rod 31 is twisted to rotate in the threaded hole 30, lifting action can be carried out, and the stability of the support column 26 can be guaranteed when the end portion of the threaded anchor rod 31 enters the ground surface.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims

1. The utility model provides a basement construction is with preventing support device that collapses, includes first base (1), its characterized in that, the quantity of first base (1) is a plurality of, and articulates through first round pin axle (2) between two adjacent first bases (1), and the surface that lies in outside first base (1) articulates with the medial surface of second base (4) through second round pin axle (3), the top fixedly connected with same first elastic panel (5) of first base (1) and second base (4), the top fixedly connected with resilient means (6) of first elastic panel (5), the one end fixedly connected with connection supporting seat (7) that first elastic panel (5) was kept away from in resilient means (6), and the bottom fixedly connected with threaded rod (8) that lies in middle first base (1), the surface threaded connection of threaded rod (8) has a screw thread section of thick bamboo (9), the surface of the threaded cylinder (9) is sleeved with a first bearing (12), the side face of the first bearing (12) is fixedly connected with a first connecting frame (13), the inner side wall of the first connecting frame (13) is hinged with one end of the surface of a movable rod (15) through a third pin shaft (14), the other end of the surface of the movable rod (15) is hinged with the inner side wall of a second connecting frame (16) through a fourth pin shaft (17), the number of the second connecting frames (16) is a plurality, the tops of the second connecting frames (16) are respectively fixedly connected with the bottoms of a first base (1) and a second base (4), the surface of the threaded cylinder (9) is sleeved with a second bearing (10), the second bearing (10) is clamped at the top of the bottom plate, the surface of the bottom plate is sleeved with a sliding sleeve (25), the sliding sleeve (25) is sleeved with a supporting column (26), the side surface of the supporting column (26) is fixedly connected with a first supporting plate (27), and the top of the first supporting plate (27) is fixedly connected with the bottom of the base (33) through a hydraulic cylinder (28); the inner side wall of the second base (4) is hinged to the surface of the first flange (20) through a fifth pin shaft (19), the bottom of the first flange (20) is fixedly connected with one end of a telescopic device (21), the other end of the telescopic device (21) is fixedly connected with a second flange (22), the surface of the second flange (22) is hinged to the inner side wall of a fixed seat (24) through a sixth pin shaft (23), and the bottom of the fixed seat (24) is fixedly connected with the top of a base (33); a connecting groove (35) is formed in the side face of the connecting and supporting seat (7), a second elastic panel (36) is arranged in the connecting groove (35), the side face of each second elastic panel (36) is fixedly connected with the inner side wall of the connecting groove (35) through a spring, the opposite faces of two adjacent second elastic panels (36) are fixedly connected, a sliding groove (38) is formed in the position, corresponding to the second elastic panel (36), of the bottom of the inner side of the connecting groove (35), a sliding block (37) is connected in the sliding groove (38), and the sliding block (37) is fixedly connected with the opposite faces of the second elastic panels (36); elastic device (6) are including flexible cover (61), the one end of flexible cover (61) and the top fixed connection of first elastic panel (5), telescopic link (62) have been cup jointed in flexible cover (61), the one end of telescopic link (62) and the bottom fixed connection of joint support seat (7), the first magnetic sheet (63) of the other end fixedly connected with of telescopic link (62) to the position fixedly connected with second magnetic sheet (64) of first magnetic sheet (63) is corresponded to flexible cover (61) inside wall, and second magnetic sheet (64) are the same with the magnetic pole of first magnetic sheet (63) opposite face.

2. The anti-collapse supporting device for the basement building construction as claimed in claim 1, wherein the second bearing (10) is fixedly connected with a plurality of ribbed plates (11) on the surface, the number of the ribbed plates (11) is several, the ribbed plates (11) are in an annular array with the axis of the second bearing (10) as the center of circle, and the threaded cylinder (9) is fixedly connected with a plurality of levers (18) on the surface.

3. The anti-collapse supporting device for the basement building construction as claimed in claim 1, wherein a universal wheel (32) is arranged at the bottom end of the supporting column (26), a second supporting plate (29) is fixedly connected to the side surface of the supporting column (26) corresponding to the position of the universal wheel (32), a threaded hole (30) is formed in the surface of the second supporting plate (29), and a threaded anchor rod (31) is connected to the threaded hole (30) in a threaded manner.

4. The anti-collapse supporting device for basement building construction according to claim 1, wherein the input end of the hydraulic cylinder (28) is electrically connected with the output end of the switch (40) through a lead, the input end of the switch (40) is electrically connected with the output end of the power supply (39) through a lead, and the switch (40) and the power supply (39) are both arranged on the top of the base (33).